in fact, its wider than the euphrates itself. unbelievable engineering achievement. >> alwash: this is my first time seeing it from the air this close up, and it is... it is spectacular. >> pelley: no one will ever know how many lives were lost and how many families were left in misery by the genocide that followed. >> alwash: they didn't even wait for nature to... to die a natural death. as soon as the embankments were finished, they put light to the reeds of the marshes. >> pelley: set fire to the reeds. >> alwash: set fire to the reeds. >> pelley: the cradle of civilization. >> alwash: where eden was. >> pelley: was desiccated. >> alwash: dead. >> pelley: we met some of the survivors, like sheikh hassan, returning to the rubble left by saddam's army. what happened to the village after everyone was ordered out? i mean, what happened to this house? >> sheikh hassan ( translated ): the government gave us three days to get out before the tanks came and crushed our houses. they destroyed about 180 houses in the area. >> pelley: has